Can you calculate % of V02 max at which you're working (assuming it's >100%) by measuring change in blood oxygenation with a pulse ox?
My understanding is that working at >100% VO2 max means you're ...

I had a look at the "treadmill version" on the c25k website, but it has runs lasting < 2 minutes. The treadmill that I want to use, is very slow changing speeds - I'm concerned that going from walk ...

I am a blood donor, giving about 0.5L blood approx every 3-4 months. Last time I was in to give blood, I had a short chat with the nurse about Hgb levels in blood, recuperating after the donation and ...

I used to go to the gym 2-3 years ago. But now I rarely go, because after a break I can't really do any cardio: after 7-15 minutes at a treadmill I get really tired. I usually go 10-14kmph and going ...

I am 6"1 and around 264.5lbs (or around about 120kg). I really love working out and i have been losing some weight, but i can't do cardiovascular training or most body-weight type training due to the ...

I'm a bigger guy, 6 foot tall, about 250 pounds, go to an MMA gym 3-4 times a week (more when time allows) and a regular gym once or twice a week. My boxing/kickboxing/Muay Thai is on point, both for ...

Five years ago, I had my weight up to 84 kg. I hit the gym continuously for 8 months at that time. Also, I excluded all chapattis and rice from my meals. As a result, I lost almost 10 kg.
But after ...

So I'm trying to get into better shape, who isn't? And from what I've seen, some combination of aerobic training and weight training is the best way to do it, exercise-wise. Also, from what I've read ...

I've often heard it recommended to allow for an "off day" between strength training a specific muscle group to give it time to recover, and thus grow stronger. However, I haven't heard the same for ...

In a similar question the following is stated however I've read online that 30 minutes is better. Is there any conclusive study or research on the ideal length of a cardio for someone who is losing ...

So I am a 37 year old software dude who's trying to get/stay in shape. In the past, I've done a lot of what I'd call "crossfit-light" type exercise. Mainly bodyweight squats, lunges, pushups, yoga, ...

I've never run in my life more than 300 meters because muscles below my knee swell and my feet and ankle hurts. Most of the muscle below my knee stiffen. When that happens, it hurts to walk and it is ...

I have been meaning to ask this question for a while, and I hope that it's within the scope of this site's FAQ. For about half a year or so, I've been going to the gym approximately 5 times a week, ...

Generally, I keep my carbohydrates low, less than 100 grams a day if I can. I do a fair amount of running and strength training. I participate in regional amateur competitions for the same.
I'll be ...

I've heard from a lot of different places, perhaps with their tongue planted firmly in their cheek, that cardio is antithetical to "gains". I've only started hitting the gym since about a year ago. ...

I've been reading that developing one's aerobic base is good for improving overall speed, and that to do so, I should be training at 60-75% of MHR. Is there still merit for overall speed in training ...

I am doing a simple strength training routine once every four days (Sxxx). I need to introduce a very low impact cardio day in this routine (e.g. SxCx). I would like to use the stationary bike (not ...

I had a good year-plus daily biking habit (the commute). Since leaving the last company two months ago, I've been doing little more than sitting on my ass. I've a ski trip planned for a couple weeks ...

I train for mountaineering by walking upstairs as described in the question's title. The ankle weights are 2kg each (about 4.5 pounds). I am 75kg (165 pounds), 178cm (5'8").
I am very interested in ...

Im a female,16, and i weigh about 130. Im trying to loose weight in my legs but im gaining so much muscle in them that they will not slim down, its like that fat turned into muscle and i dont know how ...

Because for looking reasons (sweating) and lack of free time, I decided to convert my 40min cardio in the morning per day (I'm doing this usually), to walking to my office which is about 4.5km (2.79 ...

My maintenance-calories number is fairly low (around 1500 calories), so I become very hungry if I cut based on diet alone. I've added basketball + HIIT-type training so that I can eat more and still ...

I am trying to get 4 hours of cardio per day following a modified version of Lyle McDonald's rapid fat loss. The first hour I do incline treadmill at 15% grade at 3.0 mph. This is about 9.65 METs. Is ...

If i just started to work out after a 4-5 week break would it be best to start slowly or just pick up my old pace? The 'sport' im referring to is fitness. Im currently debating with myself whether or ...